Quantitative Aptitude - Arithmetic Ability Questions

The value of a machine depreciates at the rate of 20% per annum. If its present value is Rs 96000, then what was the value (in Rs) of the machine 2 years ago?

If cos -4π/3 = x, then the value of x is

Which of the following ratio is greatest?

Find out the odd word/letters/number/number pair from the given alternatives.

If √x ­- √y = 1 , √x + √y = 17 then √xy = ?

Simple interest on a sum of Rs 67400 for 14 months is Rs 4718. What is the rate (in percentage) of interest per annum?

What will be the maximum power of 8 that exactly divides 25!?

By selling a used phone for Rs.6,160 Rajan got 44% less than what it cost him to buy it a few years ago. At what price should Rajan have been able to sell it to make a profit of 5%?